Get rid of CompositingState.

sky/engine/core/frame/FrameView.cpp

Index: sky/engine/core/frame/FrameView.cpp
diff --git a/sky/engine/core/frame/FrameView.cpp b/sky/engine/core/frame/FrameView.cpp
index 7163e74d12c71f922365941fcf34c60d7bc42380..bc399c40335b065ee8c0e5a065d1683762f0672e 100644
--- a/sky/engine/core/frame/FrameView.cpp
+++ b/sky/engine/core/frame/FrameView.cpp
@@ -154,13 +154,10 @@ bool FrameView::didFirstLayout() const
 
 void FrameView::invalidateRect(const IntRect& rect)
 {
-    // For querying RenderLayer::compositingState() when invalidating scrollbars.
-    // FIXME: do all scrollbar invalidations after layout of all frames is complete. It's currently not recursively true.
-    DisableCompositingQueryAsserts disabler;
+    // FIXME(sky): Parent is always null in sky?

[abarth-chromium, 2014/11/27 02:48:42]

Yes.

     if (!parent()) {
         if (HostWindow* window = hostWindow())
             window->invalidateContentsAndRootView(rect);
-        return;
     }
 }